diff options
| author | Igor Mammedov <imammedo@redhat.com> | 2016-02-03 13:46:34 +0000 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2016-02-03 13:46:34 +0000 |
| commit | 6d152ebaf4db6567cefbbd3b2b102c4a50172109 (patch) | |
| tree | 4a7384b189120a95cc65a471a557174025a7e7a3 | |
| parent | 3526423e867765568ad95b8094ae8b4042cac215 (diff) | |
arm: virt-acpi: each MADT.GICC entry as enabled unconditionally
in current impl. condition
build_madt() {
...
if (test_bit(i, cpuinfo->found_cpus))
is always true since loop handles only present CPUs
in range [0..smp_cpus).
But to fill usless cpuinfo->found_cpus we do unnecessary
scan over QOM tree to find the same CPUs.
So mark GICC as present always and drop not needed
code that fills cpuinfo->found_cpus.
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Shannon Zhao <shannon.zhao@linaro.org>
Message-id: 1454323689-248759-1-git-send-email-imammedo@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
| -rw-r--r-- | hw/arm/virt-acpi-build.c | 26 | ||||
| -rw-r--r-- | include/hw/arm/virt-acpi-build.h | 1 |
2 files changed, 3 insertions, 24 deletions
diff --git a/hw/arm/virt-acpi-build.c b/hw/arm/virt-acpi-build.c index f6e538f3d0..26146919cd 100644 --- a/hw/arm/virt-acpi-build.c +++ b/hw/arm/virt-acpi-build.c @@ -46,20 +46,6 @@ #define ARM_SPI_BASE 32 #define ACPI_POWER_BUTTON_DEVICE "PWRB" -typedef struct VirtAcpiCpuInfo { - DECLARE_BITMAP(found_cpus, VIRT_ACPI_CPU_ID_LIMIT); -} VirtAcpiCpuInfo; - -static void virt_acpi_get_cpu_info(VirtAcpiCpuInfo *cpuinfo) -{ - CPUState *cpu; - - memset(cpuinfo->found_cpus, 0, sizeof cpuinfo->found_cpus); - CPU_FOREACH(cpu) { - set_bit(cpu->cpu_index, cpuinfo->found_cpus); - } -} - static void acpi_dsdt_add_cpus(Aml *scope, int smp_cpus) { uint16_t i; @@ -458,8 +444,7 @@ build_gtdt(GArray *table_data, GArray *linker) /* MADT */ static void -build_madt(GArray *table_data, GArray *linker, VirtGuestInfo *guest_info, - VirtAcpiCpuInfo *cpuinfo) +build_madt(GArray *table_data, GArray *linker, VirtGuestInfo *guest_info) { int madt_start = table_data->len; const MemMapEntry *memmap = guest_info->memmap; @@ -489,9 +474,7 @@ build_madt(GArray *table_data, GArray *linker, VirtGuestInfo *guest_info, gicc->cpu_interface_number = i; gicc->arm_mpidr = armcpu->mp_affinity; gicc->uid = i; - if (test_bit(i, cpuinfo->found_cpus)) { - gicc->flags = cpu_to_le32(ACPI_GICC_ENABLED); - } + gicc->flags = cpu_to_le32(ACPI_GICC_ENABLED); } if (guest_info->gic_version == 3) { @@ -599,11 +582,8 @@ void virt_acpi_build(VirtGuestInfo *guest_info, AcpiBuildTables *tables) { GArray *table_offsets; unsigned dsdt, rsdt; - VirtAcpiCpuInfo cpuinfo; GArray *tables_blob = tables->table_data; - virt_acpi_get_cpu_info(&cpuinfo); - table_offsets = g_array_new(false, true /* clear */, sizeof(uint32_t)); @@ -630,7 +610,7 @@ void virt_acpi_build(VirtGuestInfo *guest_info, AcpiBuildTables *tables) build_fadt(tables_blob, tables->linker, dsdt); acpi_add_table(table_offsets, tables_blob); - build_madt(tables_blob, tables->linker, guest_info, &cpuinfo); + build_madt(tables_blob, tables->linker, guest_info); acpi_add_table(table_offsets, tables_blob); build_gtdt(tables_blob, tables->linker); diff --git a/include/hw/arm/virt-acpi-build.h b/include/hw/arm/virt-acpi-build.h index 744b666385..7d3700ebf6 100644 --- a/include/hw/arm/virt-acpi-build.h +++ b/include/hw/arm/virt-acpi-build.h @@ -23,7 +23,6 @@ #include "qemu-common.h" #include "hw/arm/virt.h" -#define VIRT_ACPI_CPU_ID_LIMIT 8 #define ACPI_GICC_ENABLED 1 typedef struct VirtGuestInfo { |